Accurate laser tuning device for a harmonica

Abstract

The application is suitable for the technical field of laser tuning, and provides a precise laser tuning device for a mouth organ, which comprises a support, one side of the support is provided with a positioning assembly, the positioning assembly comprises a pressing plate, the pressing plate is slidably connected to one side of the support, the bottom of the pressing plate is fixedly connected with a V-shaped spring plate, a tuning assembly is installed below the pressing plate, the tuning assembly comprises a detector and a laser head, the detector is installed on the top of the pressing plate, the laser head is installed on the bottom of the pressing plate, an exhaust pipe is arranged above the pressing plate, and the bottom end of the exhaust pipe extends to below the pressing plate; an upper feeding assembly is arranged on the top of the support, the upper feeding assembly comprises a track, the track is installed on the top of the support, the inside of the track is uniformly provided with spring plates, and a push block is slidably connected to the inside of the track, so that the problem of needing to accurately place the spring plates is solved, and the effect of quickly positioning the spring plates is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of laser tuning, more particularly, it relates to a precise laser tuning device for a harmonica. BACKGROUND

[0002] The harmonica is a small, accurate and melodious keyboard wind instrument. It belongs to the same category as the mouth organ and is a free-reed instrument. The harmonica uses a piano keyboard and is played by blowing through a side mouthpiece to vibrate the reed. Therefore, it can also be considered as a keyboard wind instrument. When assembling the harmonica, the staff needs to tune the reed. The existing tuning device fixes the reed on the reed seat for laser tuning. However, different harmonicas have different sizes of reeds, so the reed needs to be accurately placed when placing the reed. After tuning, the reed needs to be removed and placed again, which not only increases the workload of the staff, but also reduces the working efficiency of the tuning device. SUMMARY

[0003] In view of the deficiencies of the prior art, the purpose of the present application is to provide a precise laser tuning device for a harmonica.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a precise laser tuning device for a harmonica, comprising a support, a positioning assembly is arranged on one side of the support, the positioning assembly comprises a pressing plate, the pressing plate is slidably connected to one side of the support, a V-shaped reed is fixedly connected to the bottom of the pressing plate, a tuning assembly is installed below the pressing plate, the tuning assembly comprises a detector and a laser head, the detector is installed on the top of the pressing plate, the laser head is installed on the bottom of the pressing plate, an exhaust pipe is arranged above the pressing plate, and the bottom end of the exhaust pipe extends below the pressing plate.

[0005] An upper feeding assembly is arranged on the top of the support, the upper feeding assembly comprises a track, the track is installed on the top of the support, and the inside of the track is uniformly provided with a reed.

[0006] The present application is further provided: a push block is slidably connected in the inside of the track, a lead screw is slidably connected to the top of the push block, a connecting plate is fixedly connected to the outer side wall of the lead screw, a sleeve is fixedly connected to the end of the connecting plate away from the lead screw, a connecting rod is hinged to one side of the V-shaped reed, one end of the connecting rod penetrates the inner wall of the track, and the sleeve is sleeved on the outer side wall of the connecting rod.

[0007] The present application is further provided: a positioning plate is fixedly connected to one side of the support, a pressing block is hinged in the inside of the positioning plate, and a fixed rod is fixedly connected to the top end of the pressing block.

[0008] The side wall of the support is symmetrically provided with two sliding grooves, one side of the pressing plate is symmetrically fixedly connected with two sliding blocks, and the two sliding blocks are slidably connected in the two sliding grooves.

[0009] The top of the support is symmetrically fixedly connected with two vertical columns, the top of the two vertical columns penetrates the bottom of the pressing plate, a first spring is connected between the bottom of the pressing plate and the top of the support, and the first spring is located on the outer side wall of the vertical column.

[0010] The side wall of the track is slidably connected with two clamping blocks, the side wall of the track is fixedly connected with two baffle plates, and the two clamping blocks are located between the two baffle plates.

[0011] The side of the two clamping blocks away from the V-shaped spring sheet is fixedly connected with a limiting block, one side of the track is provided with a limiting groove, the limiting block penetrates the inside of the limiting groove, and a second spring is connected between the two limiting blocks.

[0012] The side of the track away from the limiting groove is provided with a through hole, and the connecting rod is slidably connected in the through hole.

[0013] The top of the pushing block is provided with an adjusting assembly, the adjusting assembly comprises a groove, the bottom end of the lead screw is slidably connected in the groove, and the outer side wall of the lead screw is threadedly connected with a fastening bolt.

[0014] The V-shaped spring sheet is arranged, the spring plate is pre-placed on the track by the worker, that is, as the pressing plate continuously moves downward, the pushing block pushes the spring plate to the laser head position, the V-shaped spring sheet extrudes the spring plate into the two clamping blocks for positioning, in this process, the worker does not need to accurately position when placing the spring plate, and after completing the tuning of one spring plate, the spring plate can be automatically discharged and fed through the up-down movement of the pressing plate, and the working efficiency of the device is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a schematic view of the overall structure of the present application;

[0016] Figure 2 It is a schematic view of the front view structure of the present application;

[0017] Figure 3 It is a schematic view of the side view structure of the present application;

[0018] Figure 4 It is Figure 2 It is a sectional view cut along the A-A direction;

[0019] Figure 5Structure diagram of the adjusting assembly of the application;

[0020] Figure 6 is Figure 3 Sectional view taken along the B-B direction;

[0021] In the figure: 1, support; 2, positioning assembly; 21, positioning plate; 22, fixed rod; 23, pressing block; 24, pressing plate; 25, vertical column; 26, first spring; 27, sliding groove; 28, sliding block; 29, V-shaped spring piece; 291, clamping block; 292, limiting block; 293, second spring; 294, limiting groove; 295, baffle; 3, tuning assembly; 31, detector; 32, exhaust pipe; 33, laser head; 4, feeding assembly; 41, track; 42, push block; 43, sleeve; 44, connecting rod; 45, connecting plate; 46, through hole; 47, spring plate; 48, lead screw; 5, adjusting assembly; 51, groove; 52, fastening bolt. DETAILED DESCRIPTION

[0022] It should be noted that the embodiments and features in the embodiments in the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0023] It should be noted that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as generally understood by those skilled in the art to which the present application belongs.

[0024] In the present application, unless otherwise specified, the directions such as "up", "down" are generally directed to the directions shown in the drawings, or are directed to the vertical, perpendicular or gravity directions; similarly, for the convenience of understanding and description, "left", "right" are generally directed to the left and right shown in the drawings; "inner", "outer" refer to the inner and outer relative to the contour of each component itself, but the above directional words are not used to limit the present application.

[0025] Please refer to Figures 1-5 The present application provides the following technical scheme: a precise laser tuning device for a melodeon, comprising a support 1, one side of the support 1 is provided with a positioning assembly 2, the positioning assembly 2 comprises a pressing plate 24, the pressing plate 24 is slidingly connected to one side of the support 1, the bottom of the pressing plate 24 is fixedly connected with a V-shaped spring piece 29, one side of the support 1 is fixedly connected with a positioning plate 21, the inside of the positioning plate 21 is hingedly connected with a pressing block 23, the top end of the pressing block 23 is fixedly connected with a fixed rod 22, the fixed rod 22 is used to drive the pressing block 23 to rotate between the positioning plate 21, and the pressing block 23 is triangular, when the fixed rod 22 is in a vertical state, the pressing block 23 is separated from the pressing plate 24, when the fixed rod 22 is in a horizontal state, the pressing block 23 extrudes the pressing plate 24, so that the pressing plate 24 slides on the side wall of the support 1;

[0026] The side wall of the support 1 is symmetrically provided with two sliding grooves 27, one side of the pressing plate 24 is symmetrically and fixedly connected with two sliding blocks 28, the two sliding blocks 28 are respectively and slidingly connected in the two sliding grooves 27, when the pressing plate 24 slides on the side wall of the support 1, the pressing plate 24 drives the sliding blocks 28 to slide in the sliding grooves 27, thereby guiding the pressing plate 24;

[0027] The top of the support 1 is symmetrically and fixedly connected with two columns 25, the top of the two columns 25 penetrates the bottom of the pressing plate 24, the bottom of the pressing plate 24 and the top of the support 1 are connected with the first spring 26, the first spring 26 is located on the outer side wall of the column 25, when the pressing plate 24 moves downward, the first spring 26 is gradually compressed, and the pressing plate 24 slides on the outer side wall of the column 25, when the pressing block 23 is separated from the pressing plate 24, the elastic force of the first spring 26 drives the pressing plate 24 to move upward, and supports the pressing plate 24;

[0028] The bottom of the pressing plate 24 is provided with the tone adjusting assembly 3, the tone adjusting assembly 3 comprises a detector 31 and a laser head 33, the detector 31 is installed on the top of the pressing plate 24, the laser head 33 is installed on the bottom of the pressing plate 24, the top of the pressing plate 24 is provided with an exhaust pipe 32, the bottom end of the exhaust pipe 32 extends to the bottom of the pressing plate 24, the exhaust pipe 32 is connected with an external gas supply device, the external gas supply device can be a fan or a gas pump, which is not limited here, the external gas supply device flows the gas through the exhaust pipe 32;

[0029] The top of the support 1 is provided with the feeding assembly 4, the feeding assembly 4 comprises a track 41, the track 41 is installed on the top of the support 1, the inside of the track 41 is uniformly provided with a spring plate 47, the gas discharged through the exhaust pipe 32 blows to the spring plate 47, so that the spring plate 47 emits a sound, the detector 31 detects the sound and transmits the detection result to the detection system for comparison with the standard tone, if there is a difference between the actual tone and the standard tone, the laser head 33 adjusts the spring plate 47, so that the actual tone is consistent with the standard tone;

[0030] The inside of the track 41 is slidably connected with a push block 42, the top of the push block 42 is slidably connected with a lead screw 48, the outer side wall of the lead screw 48 is fixedly connected with a connecting plate 45, the end of the connecting plate 45 away from the lead screw 48 is fixedly connected with a sleeve 43, one side of the V-shaped spring sheet 29 is hingedly connected with a connecting rod 44, one side of the track 41 away from the limiting groove 294 is provided with a through hole 46, the connecting rod 44 is slidably connected in the inside of the through hole 46, the sleeve 43 is sleeved on the outer side wall of the connecting rod 44, when the pressing plate 24 moves downward, one end of the V-shaped spring sheet 29 slides in the inside of the track 41, so that the V-shaped spring sheet 29 pushes the spring plate 47 to slide in the inside of the track 41, and the V-shaped spring sheet 29 is gradually deformed under the influence of the pressing plate 24, the end of the V-shaped spring sheet 29 slides pulls the connecting rod 44 to slide in the inside of the through hole 46, at the same time, the connecting rod 44 pulls the sleeve 43 and the connecting plate 45 to displace, and the connecting plate 45 synchronously pushes the push block 42 to slide in the inside of the track 41 and to the side away from the laser head 33, on the contrary, the pressing plate 24 moves upward, so that the push block 42 slides in the inside of the track 41 and to the side close to the laser head 33;

[0031] The side wall of the track 41 is slidably connected with two clamping blocks 291, the side wall of the track 41 is fixedly connected with two baffles 295, the two clamping blocks 291 are located between the two baffles 295, when the V-shaped spring sheet 29 pushes the spring plate 47 to move, the spring plate 47 slides between the two clamping blocks 291, and the two clamping blocks 291 are used for positioning the spring plate 47;

[0032] The side of the two clamping blocks 291 away from the V-shaped spring sheet 29 is fixedly connected with a limiting block 292, one side of the track 41 is provided with a limiting groove 294, the limiting block 292 penetrates in the inside of the limiting groove 294, the two clamping blocks 291 drive the limiting block 292 to slide in the inside of the limiting groove 294 when sliding, and the limiting block 292 and the limiting groove 294 cooperate, so as to play a guiding role on the two clamping blocks 291, and the second spring 293 is connected between the two limiting blocks 292, when the two clamping blocks 291 move away from each other, the second spring 293 is pulled and stretched under stress, and when the spring plate 47 moves between the two clamping blocks 291, the elastic force of the second spring 293 drives the two clamping blocks 291 to move close to each other, so as to clamp and fix the spring plate 47;

[0033] The top of the push block 42 is provided with an adjusting assembly 5, the adjusting assembly 5 comprises a groove 51, the bottom end of the lead screw 48 is slidably connected in the inside of the groove 51, the outer side wall of the lead screw 48 is threadedly connected with a fastening bolt 52, when it is needed to tune the spring plate 47 of different sizes, the lead screw 48 is pulled to slide in the inside of the groove 51, so as to adjust the angle of the connecting plate 45 in the initial state, and the fastening bolt 52 is used for fixing the lead screw 48 in the inside of the groove 51;

[0034] Embodiment

[0035] Specifically, the staff will need to place the reed 47 in the track 41 inside, and the reed 47 is located between the two clamping blocks 291, at this time the fixed rod 22 is in a vertical state, the pressing block 23 is separated from the pressing plate 24, after the reed 47 is placed, the staff rotates the pressing block 23 between the positioning plate 21 driven by the fixed rod 22, the fixed rod 22 gradually changes from a vertical state to a horizontal state, so that the pressing block 23 gradually extrudes the pressing plate 24, and the pressing plate 24 gradually slides on the side wall of the support 1;

[0036] When the pressing plate 24 moves down, the first spring 26 is gradually compressed, and the pressing plate 24 slides on the outer side wall of the stand column 25, the pressing plate 24 pushes the V-shaped spring piece 29 to move down, one end of the V-shaped spring piece 29 contacts and slides inside the track 41, causing the V-shaped spring piece 29 to push the reed 47 to slide inside the track 41, and the V-shaped spring piece 29 is gradually deformed under the influence of the pressing plate 24;

[0037] When the V-shaped spring piece 29 pushes the reed 47 to move, since the opposite side of the two clamping blocks 291 is provided as an arc surface, when the reed 47 slides to the position of the two clamping blocks 291, the reed 47 first slides on the arc surface of the two clamping blocks 291, and as the reed 47 continuously moves, the two clamping blocks 291 move away from each other, and the two clamping blocks 291 drive the limiting block 292 to slide inside the limiting groove 294 when sliding, the limiting block 292 and the limiting groove 294 cooperate to guide the two clamping blocks 291, the reed 47 slides between the two clamping blocks 291, the two clamping blocks 291 are used to position the reed 47, and the V-shaped spring piece 29 continuously applies force to the reed 47, the reed 47 is stationary against the inner wall of the track 41;

[0038] When one end of the V-shaped spring piece 29 slides inside the track 41, it pulls the connecting rod 44 to slide inside the through hole 46, at the same time, the connecting rod 44 pulls the sleeve 43 and the connecting plate 45 to displace, and the connecting plate 45 synchronously pushes the push block 42 to slide inside the track 41 and away from the laser head 33, the staff places the next reed 47 that needs to be tuned between the push block 42 and the V-shaped spring piece 29, without the need for accurate placement;

[0039] The staff controls the external gas supply device to start, the external gas supply device flows gas through the exhaust pipe 32 and blows it to the reed 47, causing the reed 47 to emit a sound, the detector 31 detects the sound and transmits the detection result to the detection system for comparison with the standard tone, if there is a difference between the actual tone and the standard tone, the laser head 33 adjusts the reed 47, so that the actual tone is consistent with the standard tone;

[0040] When the spring plate 47 is tuned, the staff loosens the fixed rod 22, the first spring 26 pushes the pressing plate 24 to move upwards, the V-shaped spring piece 29 moves away from the tuned spring plate 47, the two clamping blocks 291 move towards each other under the influence of the second spring 293, so that the spring plate 47 is bounced back to the middle of the track 41; at the same time, the V-shaped spring piece 29 slides reversely in the inside of the track 41 and pushes the connecting rod 44 to slide in the through hole 46, the connecting rod 44 pulls the sleeve 43 and the connecting plate 45 to move, and the connecting plate 45 pushes the push block 42 to slide in the track 41 and move towards the side close to the laser head 33, so that the untuned spring plate 47 is displaced and slides to the position of the V-shaped spring piece 29, and the tuned spring plate 47 is displaced from the position of the V-shaped spring piece 29, which is convenient for the staff to take out;

[0041] When the spring plate 47 of different sizes needs to be tuned, the lead screw 48 is pulled to slide in the groove 51, so that the angle of the connecting plate 45 in the initial state is adjusted, so that the sliding distance of the push block 42 in the track 41 changes, that is, when the spring plate 47 is longer, the lead screw 48 is adjusted away from the V-shaped spring piece 29, and when the spring plate 47 is shorter, the lead screw 48 is adjusted close to the V-shaped spring piece 29.

[0042] Obviously, the above-described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the scope of protection of the present application.

[0043] It should be noted that the terms used herein are only intended to describe specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise, and it should be understood that when the terms "comprise" and / or "include" are used in the specification, there is a feature, step, work, device, component and / or combination thereof.

[0044] It should be noted that the terms "first", "second" and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0045] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Those skilled in the art can make various modifications and changes to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

[0046] The above merely describes the preferred embodiments of the present application, and the protection scope of the present application is not limited to the above-described embodiments. Any technical solution falling within the concept of the present application shall fall within the protection scope of the present application. It should be noted that, for ordinary skilled persons in the art, some improvements and refinements without departing from the principles of the present application shall also be considered as falling within the protection scope of the present application.

Claims

1. A precision laser tuning device for a melodica, comprising a support (1), characterized in that: A positioning component (2) is provided on one side of the bracket (1). The positioning component (2) includes a pressure plate (24). The pressure plate (24) is slidably connected to one side of the bracket (1). A V-shaped spring (29) is fixedly connected to the bottom of the pressure plate (24). A tuning component (3) is installed below the pressure plate (24). The tuning component (3) includes a detector (31) and a laser head (33). The detector (31) is installed on the top of the pressure plate (24). A laser head (33) is installed at the bottom of the pressure plate (24). An exhaust pipe (32) is provided above the pressure plate (24). The bottom end of the exhaust pipe (32) extends to the bottom of the pressure plate (24). The top of the support (1) is provided with a feeding assembly (4), which includes a track (41). The track (41) is installed on the top of the support (1), and spring plates (47) are evenly arranged inside the track (41). The track (41) is slidably connected to a push block (42), and a lead screw (48) is slidably connected to the top of the push block (42). A connecting plate (45) is fixedly connected to the outer wall of the lead screw (48). A sleeve (43) is fixedly connected to the end of the connecting plate (45) away from the lead screw (48). A connecting rod (44) is hinged to one side of the V-shaped spring (29). One end of the connecting rod (44) passes through the inner wall of the track (41), and the sleeve (43) is fitted onto the outer wall of the connecting rod (44). A positioning plate (21) is fixedly connected to one side of the bracket (1), and a pressure block (23) is hinged inside the positioning plate (21). A fixing rod (22) is fixedly connected to the top of the pressure block (23).

2. The precision laser tuning device for a melodica according to claim 1, characterized in that: The side wall of the bracket (1) has two symmetrical grooves (27), and two sliders (28) are symmetrically fixed to one side of the pressure plate (24). The two sliders (28) are slidably connected to the inside of the two grooves (27).

3. The precision laser tuning device for a harmonica according to claim 2, characterized in that: The top of the bracket (1) is symmetrically fixed with two columns (25), the top of the two columns (25) penetrates the bottom of the pressure plate (24), and a first spring (26) is connected between the bottom of the pressure plate (24) and the top of the bracket (1). The first spring (26) is located on the outer wall of the column (25).

4. The precision laser tuning device for a harmonica according to claim 3, characterized in that: The side wall of the track (41) is slidably connected to two clamping blocks (291), and the side wall of the track (41) is fixedly connected to two baffles (295). The two clamping blocks (291) are located between the two baffles (295).

5. A precision laser tuning device for a melodica according to claim 4, characterized in that: The two clamping blocks (291) are fixedly connected to the side away from the V-shaped spring (29) by a limiting block (292). A limiting groove (294) is opened on one side of the track (41). The limiting block (292) passes through the inside of the limiting groove (294). A second spring (293) is connected between the two limiting blocks (292).

6. A precision laser tuning device for a melodica according to claim 5, characterized in that: The track (41) has a through hole (46) on the side away from the limiting groove (294), and the connecting rod (44) is slidably connected to the inside of the through hole (46).

7. A precision laser tuning device for a melodica according to claim 6, characterized in that: An adjustment component (5) is installed on the top of the push block (42). The adjustment component (5) includes a groove (51). The bottom end of the lead screw (48) is slidably connected to the inside of the groove (51). A fastening bolt (52) is threadedly connected to the outer wall of the lead screw (48).

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